I'm tired of people who, when they don't like an article, comment that it was "obviously written by AI" instead of arguing its merits.
As for your points, global wealth is not a fixed pie, so it's not "impossible to have more than 470 trillionaires". Re:"1 person billion dollar company or 5-10 employee in the Fortune 500 is laughable" - it is difficult but not impossible. Currently, the company ranked at the bottom of the Fortune 500 (No. 500) is Vulcan Materials, with a revenue of ~$8 billion. I can imagine a company combining domain expertise with amazing AI/engineers to achieve superlative product-market fit and hit this revenue number.